Footwear sole



FIG. 1 is a perspective view of the footwear sole embodying the new design;

FIG. 2 is a bottom view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a front view thereof; and,

FIG. 6 is a rear view thereof.

The figures depict features of the footwear sole and environmental structure shown in broken lines, which form no part of the claimed design. Further, the broken line immediately adjacent to the claimed surfaces forms a boundary of the design, and itself forms no part of the claimed design. 

CLAIM The ornamental design for a footwear sole, as shown and described. 